public class J01 {
    //psvm
    public static void main(String[] args) {
        System.out.println("大家好！");
        //快捷键
        System.out.println("我系甄子丹");

//        System.out.println();
        /*
        111
        2232
        3232
        **/
        /**
         *
         *
         *
         *
         */
        System.out.println("hello2");
        System.out.println("常量");
        System.out.println("abc");
        System.out.println("12");
        System.out.println(12);
        System.out.println(3.14);
        System.out.println("3.14");

    }
}
